Under certain conditions, allows the Rotary Kiln to produce axial movement.Rotary kiln is inclined Rotary kiln equipment installation, with axial force.From ordinary hydraulic gear wheel gear wheel and the two parts we can analyze the needs of the axial play of the different gear wheels. For the roller and the rolling out of the loop round face wear uniform, also requires the Rotary kiln axial movement.General requirements for the class period ran 8 hours 1 & 2.Ordinary gear wheel is starting to limit the amount of axial movement of the Rotary kiln; hydraulic gear wheel is controlled from the Rotary kiln axial movement effect.Ordinary gear wheel rotation is Rotary kiln channeling or decline a sign from the signal effect.Hydraulic gear wheel is accompanied by large-scale Rotary kiln and the rise of the new structure, the application of hydraulic technology.It overcomes the disadvantages of the conventional gear wheel, with hydraulic systems while synchronizing with a few gear wheel bearing axial force decline Rotary kiln body.